Details - HeadDB

Warning: The UUIDs are not real.

Command

/give @p skull 1 3 {display:{Name:"A",Lore:["Skull from HeadDB.org"]},SkullOwner:{Id:"297edde2-17dd-3792-ae17-ef4fab3efd67",Properties:{textures:[{Value:"eyJ0ZXh0dXJlcyI6eyJTS0lOIjp7InVybCI6Imh0dHA6Ly90ZXh0dXJlcy5taW5lY3JhZnQubmV0L3RleHR1cmUvMmFjNThiMWEzYjUzYjk0ODFlMzE3YTFlYTRmYzVlZWQ2YmFmY2E3YTI1ZTc0MWEzMmU0ZTNjMjg0MTI3OGMifX19"}]}}}

API Usage

GET https://headdb.org/api/head/297edde2-17dd-3792-ae17-ef4fab3efd67

{
  "name": "A",
  "uuid": "297edde2-17dd-3792-ae17-ef4fab3efd67",
  "value": "eyJ0ZXh0dXJlcyI6eyJTS0lOIjp7InVybCI6Imh0dHA6Ly90ZXh0dXJlcy5taW5lY3JhZnQubmV0L3RleHR1cmUvMmFjNThiMWEzYjUzYjk0ODFlMzE3YTFlYTRmYzVlZWQ2YmFmY2E3YTI1ZTc0MWEzMmU0ZTNjMjg0MTI3OGMifX19",
  "valueDecoded": {
    "textures": {
      "SKIN": {
        "url": "http://textures.minecraft.net/texture/2ac58b1a3b53b9481e317a1ea4fc5eed6bafca7a25e741a32e4e3c2841278c"
      }
    }
  },
  "command": "/give @p skull 1 3 {display:{Name:\"A\",Lore:[\"Skull from HeadDB.org\"]},SkullOwner:{Id:\"297edde2-17dd-3792-ae17-ef4fab3efd67\",Properties:{textures:[{Value:\"eyJ0ZXh0dXJlcyI6eyJTS0lOIjp7InVybCI6Imh0dHA6Ly90ZXh0dXJlcy5taW5lY3JhZnQubmV0L3RleHR1cmUvMmFjNThiMWEzYjUzYjk0ODFlMzE3YTFlYTRmYzVlZWQ2YmFmY2E3YTI1ZTc0MWEzMmU0ZTNjMjg0MTI3OGMifX19\"}]}}}"
}

Minecraft Head Database

GET https://headdb.org/api/head/297edde2-17dd-3792-ae17-ef4fab3efd67